Funding for this research was provided by:
Alexander von Humboldt-Stiftung (Bond. Positive Emotions for Group Cognition)
Aix-Marseille Université (IMéRA - Epistemic Cooperation. The function of positive emotions.)
Received: 6 August 2019
Accepted: 12 November 2019
First Online: 2 December 2019
Compliance with Ethical Standards
: The author declares that there are no conflict(s) of interest.